Siemens Hematek, Operating Manual, Page: 14 / 98

Page 1—8, Section 1: Introduction
Staining System
Figure 1-4. Slide Transport and Staining System , Figure 1-5. Staining Systems , and Figure
1-6. Sensing Switches , illustrate the staining system, including the volume control panel,
pump assemblies, pump cap, pump arm, pump tubing, and cannula.
Figure 1-4. Slide Transport and Staining System
Volume Control Panel
The volume control panel tips out from the right front corner of the instrument and
contains three graduated adjustment knobs. The volume of reagent being delivered can be
adjusted by rotating the respective control dial clockwise to increase the volume or
counterclockwise to decrease the volume.
Solution Pumps
The instrument has three pump assemblies, one for each solution. Each assembly consists
of a pump motor, four rollers that are attached to the underside of a pump cap, and a pump
arm. All work together to maintain a constant metering speed to provide consistent
volumes of stain, buffer, and rinse, even though the line voltage may fluctuate. The
amount of solution pumped is electronically adjusted through the use of the volume
control knobs.
1 Slide Drawer
2 Waste Tank
3 Volume Control Panel